1
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Huang J, Ban C, Qin J, Xu J, Gu Y, Wei L, Yuan JM, Huang G. Visible-light promoted radical cascade cyclization of 3-allyl-2-arylquinazolinones for the synthesis of phosphorylated dihydroisoquinolino[1,2- b]quinazolinones. Chem Commun (Camb) 2024; 60:8119-8122. [PMID: 38995155 DOI: 10.1039/d4cc02915a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
A novel visible-light promoted metal-free radical cascade cyclization reaction has been developed with 3-allyl-2-arylquinazolinones as a new class of radical acceptor. This photocatalytic protocol represents an efficient approach to construct phosphorylated dihydroisoquinolino[1,2-b]quinazolinones featuring mild conditions, broad substrate scope, and gram-scale synthesis.
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Affiliation(s)
- Jun Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China.
| | - Caijin Ban
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China.
| | - Jiangping Qin
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China.
| | - Jiali Xu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China.
| | - Yunqiong Gu
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, P. R. China
| | - Liang Wei
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China.
| | - Jing-Mei Yuan
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China.
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, P. R. China
| | - Guobao Huang
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, P. R. China
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2
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Wang EB, Fan Q, Lu X, Sun B, Zhang FL. Visible light-induced reductive aza-6π electrocyclization access to phenanthridines. Org Biomol Chem 2024; 22:4968-4972. [PMID: 38825973 DOI: 10.1039/d4ob00656a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Visible light-induced aza-6π electrocyclization was developed for the synthesis of aza-arenes from nitroarenes with diverse aldehydes. This protocol allows the reduction of nitroarenes by B2nep2 and subsequent 6π-electrocyclization of the in situ formed imine under visible light. An array of 6- and multi-substituted phenanthridines were constructed in moderate to good yields under purple LEDs at room temperature. A wide scope of substrates with diverse functional groups were well tolerated. In addition, the synthetic utility of this methodology was further demonstrated in the late-stage functionalization of celecoxib.
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Affiliation(s)
- Er-Bin Wang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Qingtian Fan
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Xuelian Lu
- Shenzhen Research Institute, Wuhan University of Technology, Shenzhen 518057, P. R. China
| | - Bing Sun
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Fang-Lin Zhang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China.
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3
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Zhang Y, Zhu L, Lu Y, Lei X, Li Y. "One pot" synthesis of quinazolinone-[2,3]-fused polycyclic scaffolds in a three-step reaction sequence. Org Biomol Chem 2024; 22:4720-4726. [PMID: 38775781 DOI: 10.1039/d4ob00529e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Diverse quinazolinone-[2,3]-fused polycyclic skeletons occupy a prominent position in drug discovery. Even with currently available methods there still remain unmet needs for flexible access to such structures. Herein, we have explored a mild "one pot" procedure for the construction of various quinazolinone-[2,3]-fused polycycles. The procedure involves Pd-catalyzed carbonylation of N-(2-iodophenyl)acetamides, release of the masked terminal amine, and two sequential and spontaneous cyclizations. This generally applicable approach features easy assembly of precursors from readily available starting materials, mild reaction conditions, non-cumbersome operation, and polycyclic diversity.
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Affiliation(s)
- Yuanmu Zhang
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Pudong Zone, Shanghai 201203, China.
| | - Lingxuan Zhu
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Pudong Zone, Shanghai 201203, China.
| | - Yi Lu
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Pudong Zone, Shanghai 201203, China.
| | - Xinsheng Lei
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Pudong Zone, Shanghai 201203, China.
| | - Yingxia Li
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Pudong Zone, Shanghai 201203, China.
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4
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Huang FP, Qin WJ, Pan XY, Yang K, Wang K, Teng QH. Visible-Light-Induced Chemodivergent Synthesis of Tetracyclic Quinazolinones and 3-Iminoisoindoliones via the Substrate Control Strategy. J Org Chem 2024; 89:4395-4405. [PMID: 38501298 DOI: 10.1021/acs.joc.3c02501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
A visible-light-induced chemodivergent synthesis of tetracyclic quinazolinones and 3-iminoisoindoliones has been developed. This chemodivergent reaction afforded two kinds of different products by substrate control. A detailed investigation of the reaction mechanism revealed that this consecutive photoinduced electron transfer (ConPET) cascade cyclization involved a radical process, and the aryl radical was the crucial intermediate. This method employed 4-DPAIPN as a photocatalyst and i-Pr2NEt as a sacrificial electron donor leading to metal-free conditions.
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Affiliation(s)
- Fang-Ping Huang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Wen-Jian Qin
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Xin-Yao Pan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Kun Yang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Kai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Qing-Hu Teng
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
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5
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Li JW, Duan TS, Sun B, Zhang FL. Visible light-induced metal-free cascade denitrogenative borylation and iodination of nitroarenes. Org Biomol Chem 2024; 22:2819-2823. [PMID: 38511315 DOI: 10.1039/d4ob00309h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
An efficient method was developed for the one-pot construction of C-B and C-I via visible light-induced transformation of nitroarenes. This protocol relies on the photochemical properties of nitroarenes under visible light, followed by reduction with B2pin2 and diazotization with tBuONO. An array of arylboronates and iodobenzenes were constructed smoothly after excitation with purple LEDs at room temperature. In addition, the synthetic utility of this method was further demonstrated in the late-stage modification of a drug molecule. The advantages of this strategy include metal-free system, mild reaction conditions and acceptable substrate scope.
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Affiliation(s)
- Jun-Wei Li
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Tian-Shun Duan
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Bing Sun
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Fang-Lin Zhang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China.
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6
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Tang JJ, Zhao MY, Lin YJ, Yang LH, Xie LY. Persulfate-Promoted Carbamoylation/Cyclization of Alkenes: Synthesis of Amide-Containing Quinazolinones. Molecules 2024; 29:997. [PMID: 38474508 DOI: 10.3390/molecules29050997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/22/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
The incorporation of amide groups into biologically active molecules has been proven to be an efficient strategy for drug design and discovery. In this study, we present a simple and practical method for the synthesis of amide-containing quinazolin-4(3H)-ones under transition-metal-free conditions. This is achieved through a carbamoyl-radical-triggered cascade cyclization of N3-alkenyl-tethered quinazolinones. Notably, the carbamoyl radical is generated in situ from the oxidative decarboxylative process of oxamic acids in the presence of (NH4)2S2O8.
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Affiliation(s)
- Jia-Jun Tang
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
| | - Meng-Yang Zhao
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
| | - Ying-Jun Lin
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
| | - Li-Hua Yang
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
| | - Long-Yong Xie
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
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7
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Guo YM, Wang H, Yang JR, Chen Q, Cao C, Chen JZ. Synthesis of 2,3-Fused Quinazolinones via the Radical Cascade Pathway and Reaction Mechanistic Studies by DFT Calculations. J Org Chem 2023; 88:10448-10459. [PMID: 37458429 DOI: 10.1021/acs.joc.2c03050] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
An efficient radical cascade cyclization of unactivated alkenes toward the synthesis of a series of ring-fused quinazolinones has been developed in moderate to excellent yields using commercially available ethers, alkanes, and alcohols, respectively, under a base-free condition in a short time without a transition metal as catalyst. Notably, the transformations can be carried out with the advantages of a broad substrate scope and high atomic economy. Density functional theory calculations and wavefunction analyses were performed to elucidate the radical reaction mechanism.
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Affiliation(s)
- Ya-Min Guo
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, Zhejiang, China
| | - Hao Wang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, Zhejiang, China
| | - Jin-Rong Yang
- Polytechnic Institute, Zhejiang University, 269 Shixiang Rd., Hangzhou 310015, Zhejiang, China
| | - Qiang Chen
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, Zhejiang, China
| | - Cheng Cao
- Polytechnic Institute, Zhejiang University, 269 Shixiang Rd., Hangzhou 310015, Zhejiang, China
| | - Jian-Zhong Chen
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, Zhejiang, China
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8
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Chen X, Jin L, Wang Y, Yang H, Le Z, Xie Z. Synthesis of fused quinazolinones via visible light induced cyclization of 2-aminobenzaldehydes with tetrahydroisoquinolines. Org Biomol Chem 2023; 21:3863-3870. [PMID: 37093566 DOI: 10.1039/d3ob00198a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
This study reports a novel method for the synthesis of fused quinazolinones by visible-light-induced cyclization of 2-aminobenzaldehydes and tetrahydroisoquinolines. The reaction is easily carried out by irradiation with a blue LED in the presence of 9-fluorenone and air. A broad substrate scope with good tolerance of functionalities was observed under the optimized reaction conditions. Moreover, using 2-aminophenone as the substrate and under similar reaction conditions, the same product was obtained when a carbon was removed. The bio-active naturally occurring alkaloid rutaecarpine could be obtained by this strategy. The success of the reaction on the gram-scale and the further transformation of the substrate demonstrated the synthetic practicability of this reaction.
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Affiliation(s)
- Xuehua Chen
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, Jiangxi, China.
| | - Liang Jin
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, Jiangxi, China.
| | - Yihong Wang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, Jiangxi, China.
| | - Hong Yang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, Jiangxi, China.
| | - Zhanggao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, Jiangxi, China.
| | - Zongbo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, Jiangxi, China.
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9
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Wang Z, Zhao Y, Chen J, Chen M, Li X, Jiang T, Liu F, Yang X, Sun Y, Zhu Y. One-Pot Synthesis of Isoxazole-Fused Tricyclic Quinazoline Alkaloid Derivatives via Intramolecular Cycloaddition of Propargyl-Substituted Methyl Azaarenes under Metal-Free Conditions. Molecules 2023; 28:molecules28062787. [PMID: 36985760 PMCID: PMC10057414 DOI: 10.3390/molecules28062787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
A practical method was developed for the convenient synthesis of isoxazole-fused tricyclic quinazoline alkaloids. This procedure accesses diverse isoxazole-fused tricyclic quinazoline alkaloids and their derivatives via intramolecular cycloaddition of methyl azaarenes with tert-butyl nitrite (TBN). In this method, TBN acts as the radical initiator and the source of N-O. Moreover, this protocol forms new C-N, C-C, and C-O bonds via sequence nitration and annulation in a one-pot process with broad substrate scope and functionalization of natural products.
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Affiliation(s)
- Zhuo Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Yuhan Zhao
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Jiaxin Chen
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Mengyao Chen
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Xuehan Li
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Ting Jiang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Fang Liu
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Xi Yang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Yuanyuan Sun
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Yanping Zhu
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
- Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
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10
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Zou D, Wang W, Hu Y, Jia T. Nitroarenes and nitroalkenes as potential amino sources for the synthesis of N-heterocycles. Org Biomol Chem 2023; 21:2254-2271. [PMID: 36825326 DOI: 10.1039/d3ob00064h] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Nitro-compounds are one of the cheapest and most readily available materials in the chemical industry and are commonly utilized as versatile building blocks. Previously, the synthesis of N-heterocycles was largely based on anilines. The utilization of nitroarenes and nitroalkenes for the synthesis of N-heterocyclic compounds can save at least one step, however, as compared to anilines. Thus, considerable attention has been paid to nitroarenes and nitroalkenes as new potential amino sources. Significant progress has been made in the reductive cyclization of nitroarenes or nitroalkenes to access various N-heterocycles in recent years. Herein, we comprehensively summarize the recent progress in the construction of N-heterocycles using nitroarenes and nitroalkenes as potential amino sources. The compatibility of the reaction substrate, its mechanism, applications, advantages, and limitations in this field are also discussed in detail.
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Affiliation(s)
- Dong Zou
- Department of Pharmacy, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang, University, Hangzhou, Zhejiang, 310016, China.
| | - Wei Wang
- Department of Pharmacy, Qiantang Campus, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310018, China
| | - Yaqin Hu
- Department of Pharmacy, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang, University, Hangzhou, Zhejiang, 310016, China.
| | - Tingting Jia
- Department of Pharmacy, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, China.
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11
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Fan W. Bicyclization reactions of 1-aryl pyrazol-5-amines with 2,2-dihydroxyindene-1,3-dione: Selective synthesis of 2,6-naphthyridines and pyrrolizines. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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12
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Wang M, Ye W, Sun N, Yu W, Chang J. Synthesis of Quinazolinone-Fused Tetrahydroisoquinolines and Related Polycyclic Scaffolds by Iodine-Mediated sp 3 C-H Amination. J Org Chem 2023; 88:1061-1074. [PMID: 36630199 DOI: 10.1021/acs.joc.2c02509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
An iodine-mediated intramolecular sp3 C-H amination reaction producing quinazolinone-fused polycyclic skeletons from 2-aminobenzamide precursors is reported. This reaction does not use transition metals, has a broad substrate scope, and can be used on a gram scale. Under the optimal reaction conditions, a variety of quinazolinone-fused tetrahydroisoquinolines and derivatives of Rutaecarpine were synthesized from readily accessible compounds. The reaction proceeds well with crude 2-aminobenzamide derivatives, allowing for the synthesis of the products from simple 2-aminobenzoic acids and tetrahydroisoquinolines without purification of the 2-aminobenzamide intermediates. Preliminary biological experiments have identified Cereblon (CRBN) inhibitory activity and relevant anti-myeloma medicinal properties in some of these polycyclic products.
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Affiliation(s)
- Manman Wang
- Green Catalysis Center and College of Chemistry, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Wenjun Ye
- Green Catalysis Center and College of Chemistry, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Nannan Sun
- Green Catalysis Center and College of Chemistry, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Wenquan Yu
- Green Catalysis Center and College of Chemistry, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Junbiao Chang
- Green Catalysis Center and College of Chemistry, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
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13
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Pradhan S, Sankar RV, Gunanathan C. A Boron-Nitrogen Double Transborylation Strategy for Borane-Catalyzed Hydroboration of Nitriles. J Org Chem 2022; 87:12386-12396. [PMID: 36045008 DOI: 10.1021/acs.joc.2c01655] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Organoborane-catalyzed hydroboration of nitriles provides N,N-diborylamines, which act as efficient synthons for the synthesis of primary amines and secondary amides. Known nitrile hydroboration methods are dominated by metal catalysis. Simple and metal-free hydroboration of nitriles using diborane [H-B-9-BBN]2 as a catalyst and pinacolborane as a turnover reagent is reported. The reaction of monomeric H-B-9-BBN with nitriles leads to the hydrido-bridged diborylimine intermediate; a subsequent sequential double hydroboration-transborylation pathway involving B-N/B-H σ bond metathesis is proposed.
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Affiliation(s)
- Subham Pradhan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
| | - Raman Vijaya Sankar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
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14
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Photoexcited Nitroarenes for the Oxidative Cleavage of Alkenes. Nature 2022; 610:81-86. [PMID: 35998666 DOI: 10.1038/s41586-022-05211-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 08/09/2022] [Indexed: 11/09/2022]
Abstract
The oxidative cleavage of alkenes is an integral process that converts feedstock materials into high-value synthetic intermediates1,2,3. The most viable method to achieve this in one chemical step is with ozone4,5,6,7, which however poses technical and safety challenges owing to the explosive nature of ozonolysis products8,9. Herein, we disclose an alternative approach to achieve oxidative cleavage of alkenes using nitroarenes and purple light irradiation. We demonstrate that photoexcited nitroarenes are effective ozone surrogates that undergo facile radical [3+2] cycloaddition with alkenes. The resulting "N-doped" ozonides are safe to handle and lead to the corresponding carbonyl products under mild hydrolytic conditions. These features have enabled the controlled cleavage of all types of alkenes in the presence of a broad array of commonly used organic functionalities. Furthermore, by harnessing electronic, steric, and mediated polar effects, the structural and functional diversity of nitroarenes has provided a modular platform to obtain site-selectivity in substrates containing more than one alkene.
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15
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Zhu H, Driver TG. Recent Advances to Mediate Reductive Processes of Nitroarenes Using Single-Electron Transfer, Organomagnesium, or Organozinc Reagents. SYNTHESIS-STUTTGART 2022; 54:3142-3161. [PMID: 39076505 PMCID: PMC11286232 DOI: 10.1055/a-1792-6579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Recent advances in the development of reductive reactions of nitroarenes using organomagnesium-, organozinc-, and single electron transfer reagents is discussed within this review. The review is divided into the following sections: IntroductionOrganomagnesium-mediated reductive reactionsOrganozinc- and zinc-mediated reductive reactionsIodine-catalyzed redox cyclizationsTitanium(III)-mediated reductive cyclizationsSulfur-mediated reductive reactionsAlkoxide-mediated reductive reactions4,4'-Bipyridine-mediated reductive reactionsVisible light-driven reductive amination reactionsElectrochemical reductive reactionsConclusion.
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Affiliation(s)
- Haoran Zhu
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, USA, 60607
| | - Tom G. Driver
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, USA, 60607
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16
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Jiang HM, Qin JH, Sun Q, Zhang D, Jiang JP, Ouyang XH, Song RJ, Li JH. Copper-promoted cross-coupling of nitroarenes with 4-alkyl-1,4-dihydropyridines using a peroxide-driven radical reductive strategy. Org Chem Front 2022. [DOI: 10.1039/d2qo00706a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct radical-mediated reductive coupling of nitroarenes with 4-alkyl-1,4-dihydropyridines to build the C(sp3)–N bond using 4-alkyl-1,4-dihydropyridines as internal reducing agents and alkyl sources is presented.
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Affiliation(s)
- Hui-Min Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jing-Hao Qin
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Dong Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Peng Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 475004, China
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17
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WANG W, Zou PS, PANG L, Pan C, Mo DL, SU GF. Recent Advances on the Synthesis of 2,3-Fused Quinazolinones. Org Biomol Chem 2022; 20:6293-6313. [DOI: 10.1039/d2ob00778a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As one of the most important structural units in pharmaceuticals and medicinal chemistry, quinazolinone and its derivatives exhibit a wide range of biological and pharmacological activities, including anti-inflammatory, antitubercular, antiviral,...
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18
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Lu C, Jing D, Shen Y, Luo J, Zheng K. Redox-neutral access to 3,3′-disubstituted oxindoles via radical coupling reactions. Org Chem Front 2022. [DOI: 10.1039/d2qo00570k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient radical protocol was developed for the assembly of valuable functional oxindoles in the absence of metals, photocatalysts, and bases.
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Affiliation(s)
- Cong Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Dong Jing
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yanling Shen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Jiajing Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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19
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Ly D, Nguyen TT, Tran CTH, Nguyen VPT, Nguyen KX, Pham PH, Le NTH, Nguyen TT, Phan NTS. Metal-Free Annulation of 2-Nitrobenzyl Alcohols and Tetrahydroisoquinolines toward the Divergent Synthesis of Quinazolinones and Quinazolinethiones. J Org Chem 2021; 87:103-113. [PMID: 34918926 DOI: 10.1021/acs.joc.1c02017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A simple metal-free method for the synthesis of quinazolinones from commercially available 2-nitrobenzyl alcohols and tetrahydroisoquinolines is developed. The reaction conditions were tolerant of an array of functionalities such as halogen, tertiary amine, protected alcohol, and ester groups. Under nearly identical conditions, quinazolinethiones were obtained in the presence of elemental sulfur and suitable mediators.
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Affiliation(s)
- Duc Ly
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam.,Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
| | - Thao T Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam.,Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
| | - Cam T H Tran
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam.,Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
| | - Vy P T Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam.,Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
| | - Khang X Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam.,Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
| | - Phuc H Pham
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam.,Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
| | - Nhan T H Le
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam.,Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
| | - Tung T Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam.,Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
| | - Nam T S Phan
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam.,Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
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20
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Shen Y, Lei N, Lu C, Xi D, Geng X, Tao P, Su Z, Zheng K. Construction of sterically congested oxindole derivatives via visible-light-induced radical-coupling. Chem Sci 2021; 12:15399-15406. [PMID: 34976361 PMCID: PMC8635216 DOI: 10.1039/d1sc05273j] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/03/2021] [Indexed: 01/04/2023] Open
Abstract
The oxindole scaffold represents an important structural feature in many natural products and pharmaceutically relevant molecules. Herein, we report a visible-light-induced modular methodology for the synthesis of complex 3,3'-disubstituted oxindole derivatives. A library of valuable fluoroalkyl-containing highly sterically congested oxindole derivatives can be synthesized by a catalytic three-component radical coupling reaction under mild conditions (metal & photocatalyst free, >80 examples). This strategy shows high functional group tolerance and broad substrate compatibility (including a wide variety of terminal or non-terminal alkenes, conjugated dienes and enynes, and a broad array of polyfluoroalkyl iodide and oxindoles), which enables modular modification of complex drug-like compounds in one chemical step. The success of solar-driven transformation, large-scale synthesis, and the late-stage functionalization of bioactive molecules, as well as promising tumor-suppressing biological activities, highlights the potential for practical applications of this strategy. Mechanistic investigations, including a series of control experiments, UV-vis spectroscopy and DFT calculations, suggest that the reaction underwent a sequential two-step radical-coupling process and the photosensitive perfluoroalkyl benzyl iodides are key intermediates in the transformation.
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Affiliation(s)
- Yanling Shen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Ning Lei
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Cong Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Dailin Xi
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Xinxin Geng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Pan Tao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
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21
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22
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Qu Z, Chen X, Zhong S, Deng GJ, Huang H. NaI/PPh 3-Mediated Photochemical Reduction and Amination of Nitroarenes. Org Lett 2021; 23:5349-5353. [PMID: 34180677 DOI: 10.1021/acs.orglett.1c01654] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A mild transition-metal- and photosensitizer-free photoredox system based on the combination of NaI and PPh3 was found to enable highly selective reduction of nitroarenes. This protocol tolerates a broad range of reducible functional groups such as halogen (Cl, Br, and even I), aldehyde, ketone, carboxyl, and cyano. Moreover, the photoredox catalysis with NaI and stoichiometric PPh3 provides also an alternative entry to Cadogan-type reductive amination when o-nitrobiarenes were used.
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Affiliation(s)
- Zhonghua Qu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Xing Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Shuai Zhong
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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23
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Kaur M, Mehta V, Abdullah Wani A, Arora S, Bharatam PV, Sharon A, Singh S, Kumar R. Synthesis of 1,4-dihydropyrazolo[4,3-b]indoles via intramolecular C(sp 2)-N bond formation involving nitrene insertion, DFT study and their anticancer assessment. Bioorg Chem 2021; 114:105114. [PMID: 34243073 DOI: 10.1016/j.bioorg.2021.105114] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 11/19/2022]
Abstract
We herein report a new synthetic route for a series of unreported 1,4-dihydropyrazolo[4,3-b]indoles (6-8) via deoxygenation of o-nitrophenyl-substituted N-aryl pyrazoles and subsequent intramolecular (sp2)-N bond formation under microwave irradiation expedite modified Cadogan condition. This method allows access to NH-free as well as N-substituted fused indoles. DFT study and controlled experiments highlighted the role of nitrene insertion as one of the plausible reaction mechanisms. Furthermore, the target compounds exhibited cytotoxicity at low micromolar concentration against lung (A549), colon (HCT-116), and breast (MDA-MB-231, and MCF-7) cancer cell lines, induced the ROS generation and altered the mitochondrial membrane potential of highly aggressive MDA-MB-231 cells. Further investigations revealed that these compounds were selective Topo I (6h) or Topo II (7a, 7b) inhibitors.
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Affiliation(s)
- Manpreet Kaur
- Laboratory for Drug Design and Synthesis, Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda-151401, Punjab, India
| | - Vikrant Mehta
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda-151401, Punjab, India
| | - Aabid Abdullah Wani
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), SAS. Nagar, India
| | - Sahil Arora
- Laboratory for Drug Design and Synthesis, Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda-151401, Punjab, India
| | - Prasad V Bharatam
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), SAS. Nagar, India
| | - Ashoke Sharon
- Department of Chemistry, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Sandeep Singh
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda-151401, Punjab, India.
| | - Raj Kumar
- Laboratory for Drug Design and Synthesis, Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda-151401, Punjab, India.
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24
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Advances in the Synthesis of Ring-Fused Benzimidazoles and Imidazobenzimidazoles. Molecules 2021; 26:molecules26092684. [PMID: 34064312 PMCID: PMC8124402 DOI: 10.3390/molecules26092684] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/01/2021] [Accepted: 05/03/2021] [Indexed: 11/18/2022] Open
Abstract
This review article provides a perspective on the synthesis of alicyclic and heterocyclic ring-fused benzimidazoles, imidazo[4,5-f]benzimidazoles, and imidazo[5,4-f]benzimidazoles. These heterocycles have a plethora of biological activities with the iminoquinone and quinone derivatives displaying potent bioreductive antitumor activity. Synthesis is categorized according to the cyclization reaction and mechanisms are detailed. Nitrobenzene reduction, cyclization of aryl amidines, lactams and isothiocyanates are described. Protocols include condensation, cross-dehydrogenative coupling with transition metal catalysis, annulation onto benzimidazole, often using CuI-catalysis, and radical cyclization with homolytic aromatic substitution. Many oxidative transformations are under metal-free conditions, including using thermal, photochemical, and electrochemical methods. Syntheses of diazole analogues of mitomycin C derivatives are described. Traditional oxidations of o-(cycloamino)anilines using peroxides in acid via the t-amino effect remain popular.
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25
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Guo Y, Chen X, Li S, Cai Z, He L. Synthesis of Mutisubstituted Dihydropyridino[1,2- a]benzimidazole Derivatives via Tandem Reaction of 2-Arylbenzimidazoles. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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26
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Wang D, Xiao F, Zhang F, Huang H, Deng G. Copper‐Catalyzed
Aerobic Oxidative Ring Expansion of Isatins: A Facile Entry to
Isoquinolino‐Fused
Quinazolinones. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000368] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Dahan Wang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Fuhong Xiao
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Feng Zhang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
- School of Chemistry and Materials Science Hunan Agricultural University Changsha Hunan 410128 China
| | - Huawen Huang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Guo‐Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
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27
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Choi JH, Kim K, Oh H, Han S, Mishra NK, Kim IS. Ru(ii)-Catalyzed C-H addition and oxidative cyclization of 2-aryl quinazolinones with activated aldehydes. Org Biomol Chem 2020; 18:9611-9622. [PMID: 33020797 DOI: 10.1039/d0ob01663b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The ruthenium(ii)-catalyzed cross-coupling reaction between 2-aryl quinazolinones and activated aldehydes is described. This method enables the site-selective hydroxyalkylation under redox-neutral conditions. Moreover, this protocol provides a facile access to various tetracyclic isoindoloquinazolinones by using Cu(OAc)2 as an external oxidant via C-H addition and subsequent intramolecular cyclization. A wide substrate scope and a high level of chemoselectivity as well as broad functional group tolerance are observed.
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Affiliation(s)
- Jin Ho Choi
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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28
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Gao Y, Yang S, Huo Y, Hu X. Recent Progress on Reductive Coupling of Nitroarenes by Using Organosilanes as Convenient Reductants. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000370] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yang Gao
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 People's Republic of China
| | - Simin Yang
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 People's Republic of China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 People's Republic of China
| | - Xiao‐Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science School of Chemistry and Materials Science South-Central University for Nationalities Wuhan 430074 People's Republic of China
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29
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Chen X, Zhang X, Lu S, Sun P. Electrosynthesis of polycyclic quinazolinones and rutaecarpine from isatoic anhydrides and cyclic amines. RSC Adv 2020; 10:44382-44386. [PMID: 35517151 PMCID: PMC9058480 DOI: 10.1039/d0ra09382c] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 11/30/2020] [Indexed: 12/14/2022] Open
Abstract
A direct decarboxylative cyclization between readily available isatoic anhydrides and cyclic amines was established to construct polycyclic fused quinazolinones employing electrochemical methods. This procedure was performed in an undivided cell without the use of a transition-metal-catalyst and external oxidant. A broad scope of polycyclic fused quinazolinones were obtained in moderate to good yields. Additionally, rutaecarpine was also prepared through our method in one step in good yield. Polycyclic quinazolinones and rutaecarpine were synthesized from isatoic anhydrides and cyclic amines through an electrochemical method without an external oxidant and transition-metal-catalyst.![]()
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Affiliation(s)
- Xingyu Chen
- Institute of Chinese Meteria Medica
- Artermisinin Research Center
- Academy of Chinese Medical Sciences
- Beijing
- P. R. China
| | - Xing Zhang
- Institute of Chinese Meteria Medica
- Artermisinin Research Center
- Academy of Chinese Medical Sciences
- Beijing
- P. R. China
| | - Sixian Lu
- Institute of Chinese Meteria Medica
- Artermisinin Research Center
- Academy of Chinese Medical Sciences
- Beijing
- P. R. China
| | - Peng Sun
- Institute of Chinese Meteria Medica
- Artermisinin Research Center
- Academy of Chinese Medical Sciences
- Beijing
- P. R. China
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30
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Özkaya B, Bub CL, Patureau FW. Step and redox efficient nitroarene to indole synthesis. Chem Commun (Camb) 2020; 56:13185-13188. [DOI: 10.1039/d0cc03258a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A step and redox efficient nitroarene to indole synthesis was herein developed, in sharp contrast to the rich literature on the construction of indoles. Elemental Zinc was found to be best terminal reductant.
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Affiliation(s)
- Bünyamin Özkaya
- Institute of Organic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Christina L. Bub
- Institute of Organic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
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31
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Jia FC, Chen TZ, Hu XQ. TFA/TBHP-promoted oxidative cyclisation for the construction of tetracyclic quinazolinones and rutaecarpine. Org Chem Front 2020. [DOI: 10.1039/d0qo00345j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient TFA/TBHP-promoted oxidative cyclisation of readily available isatins with 1,2,3,4-tetrahydroisoquinolines has been firstly developed. The potential utility of this strategy was demonstrated by one-step synthesis of a natural alkaloid Rutaecarpin.
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Affiliation(s)
- Feng-Cheng Jia
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan 430073
- China
| | - Tian-Zhi Chen
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan 430073
- China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- School of Chemistry and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
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32
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Li J, Wang ZB, Xu Y, Lu XC, Zhu SR, Liu L. Catalyst-free cyclization of anthranils and cyclic amines: one-step synthesis of rutaecarpine. Chem Commun (Camb) 2019; 55:12072-12075. [PMID: 31536093 DOI: 10.1039/c9cc06160f] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An efficient synthesis of a variety of quinazolinone derivatives via a direct cyclization reaction between commercially available anthranils and cyclic amines is described. The developed transformation proceeds with the merits of high step- and atom-efficiency, a broad substrate scope, and good to excellent yields, without additional catalysts, and offers a practical way for the preparation of rutaecarpine and its derivatives with structural diversity.
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Affiliation(s)
- Jian Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmaceutical Engineering & Life Sciences, Changzhou University, Changzhou, 213164, China.
| | - Zheng-Bing Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmaceutical Engineering & Life Sciences, Changzhou University, Changzhou, 213164, China.
| | - Yue Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmaceutical Engineering & Life Sciences, Changzhou University, Changzhou, 213164, China.
| | - Xue-Chen Lu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmaceutical Engineering & Life Sciences, Changzhou University, Changzhou, 213164, China.
| | - Shang-Rong Zhu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmaceutical Engineering & Life Sciences, Changzhou University, Changzhou, 213164, China.
| | - Li Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmaceutical Engineering & Life Sciences, Changzhou University, Changzhou, 213164, China.
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33
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Jing D, Lu C, Chen Z, Jin S, Xie L, Meng Z, Su Z, Zheng K. Light‐Driven Intramolecular C−N Cross‐Coupling via a Long‐Lived Photoactive Photoisomer Complex. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906112] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Dong Jing
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Cong Lu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Zhuo Chen
- Shanghai Key Laboratory of New Drug Design School of Pharmacy East China University of Science and Technology Shanghai 200237 P. R. China
| | - Songyang Jin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Lijuan Xie
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Ziyi Meng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
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Jing D, Lu C, Chen Z, Jin S, Xie L, Meng Z, Su Z, Zheng K. Light-Driven Intramolecular C-N Cross-Coupling via a Long-Lived Photoactive Photoisomer Complex. Angew Chem Int Ed Engl 2019; 58:14666-14672. [PMID: 31373432 DOI: 10.1002/anie.201906112] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/15/2019] [Indexed: 12/24/2022]
Abstract
Reported herein is a visible-light-driven intramolecular C-N cross-coupling reaction under mild reaction conditions (metal- and photocatalyst-free, at room temperature) via a long-lived photoactive photoisomer complex. This strategy was used to rapidly prepare the N-substituted polycyclic quinazolinone derivatives with a broad substrate scope (>50 examples) and further exploited to synthesize the natural products tryptanthrin, rutaecarpine, and their analogues. The success of gram-scale synthesis and solar-driven transformation, as well as promising tumor-suppressing biological activity, proves the potential of this strategy for practical applications. Mechanistic investigations, including control experiments, DFT calculations, UV-vis spectroscopy, EPR, and X-ray single-crystal structure of the key intermediate, provides insight into the mechanism.
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Affiliation(s)
- Dong Jing
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Cong Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Zhuo Chen
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Songyang Jin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Lijuan Xie
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Ziyi Meng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
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